GHSA-424x-cxvh-wq9p Mautic allows user name enumeration due to response time difference on password reset form

• Packagist mautic/core: >= 1.0.0, < 4.4.16 → fixed in 4.4.16 • Packagist mautic/core: >= 5.0.0-alpha, < 5.2.6 → fixed in 5.2.6 • Packagist mautic/core: >= 6.0.0-alpha, < 6.0.2 → fixed in 6.0.2

Summary This advisory addresses a security vulnerability in Mautic related to the "Forget your password" functionality. This vulnerability could be exploited by unauthenticated users to enumerate valid usernames. User Enumeration via Timing Attack: A user enumeration vulnerability exists in the "Forget your password" functionality. Differences in response times for existing and non-existing users, combined with a lack of request limiting, allow an attacker to determine the existence of usernames through a timing-based attack. Mitigation Please update to a version that addresses this timing vulnerability, where password reset responses are normalized to respond at the same time regardless of user existence. Workarounds None If you have any questions or comments about this advisory: Email us at [email protected]